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Deletion of 22q11 chromosome is associated with postoperative morbidity after unifocalisation surgery

Published online by Cambridge University Press:  30 August 2018

Andrew Koth Open the ORCID record for Andrew Koth [Opens in a new window] ,
Doug Sidell ,
Holly Bauser-Heaton ,
Lisa Wise-Faberowski ,
Frank L. Hanley ,
Doff B. McElhinney  and
Ritu Asija
Andrew Koth*
Affiliation:
Division of Pediatric Cardiology, Stanford Hospital and Clinics, Stanford, CA, USA
Doug Sidell
Affiliation:
Division of Pediatric Cardiology, Stanford Hospital and Clinics, Stanford, CA, USA
Holly Bauser-Heaton
Affiliation:
Division of Pediatric Cardiology, Stanford Hospital and Clinics, Stanford, CA, USA
Lisa Wise-Faberowski
Affiliation:
Department of Anesthesia, Stanford University, Stanford, CA, USA
Frank L. Hanley
Affiliation:
Division of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
Doff B. McElhinney
Affiliation:
Division of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
Ritu Asija
Affiliation:
Division of Pediatric Cardiology, Stanford Hospital and Clinics, Stanford, CA, USA
*
Author for correspondence: A. Koth, MD, Division of Pediatric Cardiology, 750 Welch Road, Suite 325, Palo Alto, CA 94304, USA. Tel: 206 794 4501; Fax: 650 724 4922; E-mail: akoth@stanford.edu
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Abstract

Background

A 22q11 chromosome deletion is common in patients with tetralogy of Fallot, pulmonary atresia, and major aortopulmonary collaterals. We sought to determine whether 22q11 chromosome deletion is associated with increased postoperative morbidity after unifocalisation surgery.

Methods

We included all patients with this diagnosis undergoing primary or revision unifocalisation ± ventricular septal defect closure at our institution from 2008 to 2016, and we excluded patients with unknown 22q11 status. Demographic and surgical data were collected. We compared outcomes between those with 22q11 chromosome deletion and those without using non-parametric analysis.

Results

We included 180 patients, 41% of whom were documented to have a chromosome 22q11 deletion. Complete unifocalisation was performed in all patients, and intracardiac repair was performed with similar frequency regardless of 22q11 chromosome status. Duration of mechanical ventilation was longer in 22q11 deletion patients. This difference remained significant after adjustment for delayed sternal closure and/or intracardiac repair. Duration of ICU stay was longer in patients with 22q11 deletion, although no longer significant when adjusted for delayed sternal closure and intracardiac repair. Finally, length of hospital stay was longer in 22q11-deleted patients, but this difference was not significant on unadjusted or adjusted analysis.

Conclusion

Children with tetralogy of Fallot, pulmonary atresia, and major aortopulmonary collaterals and 22q11 deletion are at risk for greater prolonged mechanical ventilation after unifocalisation surgery. Careful attention should be given to the co-morbidities of this population in the perioperative period to mitigate risks that may complicate the postoperative course.

Keywords

CHDdel22q11DiGeorge syndrometetralogy of Fallotpulmonary atresia
Type
Original Article
Information
Cardiology in the Young , Volume 29 , Issue 1 , January 2019 , pp. 19 - 22
Copyright
© Cambridge University Press 2018 

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Footnotes

Cite this article: Koth A, Sidell D, Bauser-Heaton H, Wise-Faberowski L, Hanley FL, McElhinney DB, Asija R. (2018) Deletion of 22q11 chromosome is associated with postoperative morbidity after unifocalisation surgery. Cardiology in the Young29: 19–22. doi: 10.1017/S1047951118001427

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